yesbird wrote:
> On 08/10/2025 19:10, kurtz le pirate wrote:
> > Sure ! A zip file with the OBJ file and my INC file.
>
> Thanks, merging is the reason, I see a lot of duplicates here:
> grep -w v pingouin.obj  | tail -n 20
> v 0.023851 0.00175495 0.0374573
> v 0.023851 0.00175495 0.0374573
> v 0.023851 0.00175495 0.0374573
> (etc.)

Does your analysis of Kurtz's file indicate duplicate *triangles*, or just
duplicate vertices? Kurtz is converting his STL file to plain mesh AFAIU (not
mesh2)-- and in such files there are necessarily many duplicate vertices, since
they are shared among some triangles. I'm guessing that your own mesh2
conversion code 'consolidates' those somehow-- resulting in fewer vertices
overall.

If so, is this consolidation or merging one of the 'efficiency' benefits of
POV-ray's own mesh2 construct, or is it an extra operation that you added to
your own conversion code?

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